Results 81 to 90 of about 4,225,533 (383)

Short-Time Decoherence and Deviation from Pure Quantum States

, 2004
In systems considered for quantum computing, i.e., for control of quantum dynamics with the goal of processing information coherently, decoherence and deviation from pure quantum states, are the main obstacles to fault-tolerant error correction.
Shao J., Unruh W. G., VLADIMIR PRIVMAN
core   +1 more source

Quantum Chaos Border for Quantum Computing [PDF]

, 1999
We study a generic model of quantum computer, composed of many qubits coupled by short-range interaction. Above a critical interqubit coupling strength, quantum chaos sets in, leading to quantum ergodicity of the computer eigenstates.
A. Steane, A. Steane, A. Sørensen, A.D. Mirlin, A.R. Calderbank, B. Georgeot, B. Georgeot, B.E. Kane, C. Monroe, D. G. Cory, D. Jaksch, D. L. Shepelyansky, D. Loss, D. Weinmann, D.L. Shepelyansky, G.K. Brennen, J.B. French, J.I. Cirac, N.A. Gershenfeld, O. Bohigas, P. Jacquod, R.P. Feynman, S. Åberg, T. Guhr, U. Sivan, V. Privman, V. Zelevinsky, V.V. Flambaum, Y. Nakamura   +28 more
core   +2 more sources

Quantum computational supremacy [PDF]

Nature, 2017
review article originally appearing in a Nature Insight collection on "Quantum Software".
Harrow, Aram, Montanaro, Ashley
openaire   +6 more sources

Loss-tolerant operations in parity-code linear optics quantum computing [PDF]

, 2007
A heavy focus for optical quantum computing is the introduction of error-correction, and the minimisation of resource requirements. We detail a complete encoding and manipulation scheme designed for linear optics quantum computing, incorporating scalable
A. Gilchrist, A. J. F. Hayes, A. J. F. Hayes, M. A. Nielsen, P. Kok, T. C. Ralph   +5 more
core   +2 more sources

A versatile single-photon-based quantum computing platform

Nature Photonics
Quantum computing aims at exploiting quantum phenomena to efficiently perform computations that are unfeasible even for the most powerful classical supercomputers.
N. Maring, A. Fyrillas, M. Pont, Edouard Ivanov, Petr Stepanov, N. Margaria, W. Hease, A. Pishchagin, Aristide Lemaître, Isabelle Sagnes, Thi Huong Au, S. Boissier, Eric Bertasi, Aur'elien Baert, Mario Valdivia, Marie Billard, Ozan Acar, A. Brieussel, R. Mezher, S. Wein, A. Salavrakos, Patrick Sinnott, D. Fioretto, P. Emeriau, N. Belabas, S. Mansfield, P. Senellart, J. Senellart, N. Somaschi   +28 more
semanticscholar   +1 more source

Defects in Quantum Computers [PDF]

Scientific Reports, 2018
AbstractThe shift of interest from general purpose quantum computers to adiabatic quantum computing or quantum annealing calls for a broadly applicable and easy to implement test to assess how quantum or adiabatic is a specific hardware. Here we propose such a test based on an exactly solvable many body system–the quantum Ising chain in transverse ...
Gardas, Bartłomiej, Dziarmaga, Jacek, Zurek, Wojciech H., Zwolak, Michael   +3 more
openaire   +6 more sources

Entropy computing, a paradigm for optimization in open photonic systems

Communications Physics
Finding better solutions to combinatorial optimization problems could have a large positive impact on many real-world application areas, such as logistics. For this reason, significant efforts have been made to design novel optimization paradigms.
Lac Nguyen, Mohammad-Ali Miri, R. Joseph Rupert, Wesley Dyk, Sam Wu, Nick Vrahoretis, Irwin Huang, Milan Begliarbekov, Nicholas Chancellor, Uchenna Chukwu, Pranav Mahamuni, Cesar Martinez-Delgado, David Haycraft, Carrie Spear, Joel Russell Huffman, Yong Meng Sua, Yu-Ping Huang   +16 more
doaj   +1 more source

Quantum Tetrahedra

, 2009
We discuss in details the role of Wigner 6j symbol as the basic building block unifying such different fields as state sum models for quantum geometry, topological quantum field theory, statistical lattice models and quantum computing.
Carfora, Mauro, Marzuoli, Annalisa, Rasetti, Mario   +2 more
core   +1 more source

Quantum Computing

, 2006
35 pages, LaTeX (svmult.sty), 5 figures. Invited book chapter of the "Handbook of Nature-Inspired and Innovative Computing" (Springer, Berlin Heidelberg New York, 2006); minor stylistic ...
Eisert, J., Wolf, M. M.
openaire   +2 more sources

Simple quantum computer [PDF]

Physical Review A, 1995
We propose an implementation of a quantum computer to solve Deutsch's problem, which requires exponential time on a classical computer but only linear time with quantum parallelism. By using a dual-rail qubit representation as a simple form of error correction, our machine can tolerate some amount of decoherence and still give the correct result with ...
Chuang, I. L., Yamamoto, Y.
openaire   +3 more sources